Product Profile of Electronic Trivector Meter

Larsen & Toubro Limited manufactures Electronic Trivector Meter, model ER300N. Larsen & Toubro Limited is an ISO 9001 certified company. The Electronic Trivector Meter is designed with surface Mount technology and field programmable gate arrays. This Electronic Trivector Meter is light in weight, compact in design and reliable in nature. The Electronic Trivector Meter offers the following key features:

• Flush mount technology

• Self diagnostic capability

• RS485 port with MODBUS

• KWh & kVAh measurement

• Site programmable CT/PT ratios

• KWh.KVArh & kVAh measurement

• Instantaneous & cumulative parameter display
Some technical specifications of the Electronic Trivector Meter are as follows:

• Frequency: 50 Hz +/- 10 percent

• Power Factor: 4 quadrant operation

• Current [ln]: 5A or 1A [to 200 percent]

• Temperature: 0 deg to 50 deg [under operation] -5 deg to 60 deg [storage]

• Accuracy: Class 1.0 - IEC 1036/IS 13779 Class 0.5s - IEC 60687 / CBIP-88/IS14697

• Starting Current: 0.2v In [Class 1.0] 0.1 percent In [Class 0.5s]

• Load characteristics: 5VA in potential circuit 0.5V in current circuit

• Voltage [Vn]: 110V AC [-40 percent to +20 percent]

• 3Ph 4W-415V AC[-40percent to +20percent]

• 3Ph 3W-110V AC [-40 percent to +20 percent]

• Insulation properties: HV & insulation resistance IEC 1036/IS 13779 [Class 1.0]

• IEC 60687/CBIP-88/IS14679[Class 0.5s]

• Electromagnetic compatibility: IEC 1036/IS 13779 [Class 1.0]
IEC 60687/CBIP-88/IS14697[Class 0.5s]